Enhancing the Elasticity of Ultrathin Single-Wall Carbon Nanotube Films with Colloidal Nanocrystals

Meshal Alzaid, Joseph Roth, Yuezhou Wang, Eid Almutairi, Samuel L. Brown, Traian Dumitricǎ, Erik K. Hobbie

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Thin bilayers of contrasting nanomaterials are ubiquitous in solution-processed electronic devices and have potential relevance to a number of applications in flexible electronics. Motivated by recent mesoscopic simulations demonstrating synergistic mechanical interactions between thin films of single-wall carbon nanotubes (SWCNTs) and spherical nanocrystal (NC) inclusions, we use a thin-film wrinkling approach to query the compressive mechanics of hybrid nanotube/nanocrystal coatings adhered to soft polymer substrates. Our results show an almost 2-fold enhancement in the Young modulus of a sufficiently thin SWCNT film associated with the presence of a thin interpenetrating overlayer of semiconductor NCs. Mesoscopic distinct-element method simulations further support the experimental findings by showing that the additional noncovalent interfaces introduced by nanocrystals enhance the modulus of the SWCNT network and hinder network wrinkling.

Original languageEnglish (US)
Pages (from-to)7889-7895
Number of pages7
JournalLangmuir
Volume33
Issue number32
DOIs
StatePublished - Aug 15 2017

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